| dy | dx | ||
=cost, | =−2sint | ||
| dt | dt |
| dy | |
=−0.5ctgt | |
| dx |
| dy | (−sin2t−cos2t) | ||
=−0.5 | |||
| dxdt | sin2t |
| d2y | dt | 1 | |||
* | =−0.25*( | ||||
| dxdt | dx | (1−cos2t)(sint) |
| d2y | 1 | ||
=y''(x)=− | |||
| dx2 | (4−x2)(√1−0.25x2) |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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